Automatic stop for railways.



D. D. OCONNELL.

AUTOMATIC STOP FOR HAILWAYS.

APPLICATION FILED NOV. 24, X916- 1,253,086. Patented Jan. 8, 1918.

2 SHEETS-SHEET I.

aaannell D. D. OCONNELL.

AUTOMATIC STOP FOR RAILWAYS.

APPLICATION FILED NOV. 24. I916.

Patented Jail. s. 1918.

2 SHEETS-SHEET 2- Suva-tot -E: pp,0'U0n/1eZZ,

DAVID D. OGONNELL, OF SPOXANE, WASHINGTON.

AUTOMATIC STOP FOR BAILWAYS.

Specification of Letters Patent.

' Patented Jan. s, 1918.

Application filed November 24, 1916. Serial No. 133,193.

To all whom it may concern:

Be it known that I, Davin D. OCoNNELL, a citizen of the United States, residing .at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Automatic Stops for Railways; 'and I do hereby declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it a pertains to make and use the same.

T is invention relates to new and useful improvements in automatic stops for railways and the principal object of the invention is. to provide a device adapted to be attached to a railway truck to set the brakes in case any wheel of a train should become derailed thereby avoiding the possibility of the derailment of several cars.

Another object of the invention is to provide a device which is carried in close proximity to the rails, so that upon the slightest I downward movement ofthe truck should the wheel leave the track, the brake pipe will be bled, thereby setting the brakes and stopping the train.

. With these and other objects in view the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which Figure 1 is a fragmentary view of a car truck showing this improvedflattachment applied thereto. p F Fig. 2 is a vertical sectional view through %ig.'3 is a top plan view of a portion of the truck showing the method of operating thedevice. a

Fig. 4 is a fragmentary end view of a.

truck showing amodified form of the device.

54' and lower bar 5 which upper bar is pro.

Fig. 5 isa top plan View of Fi .4, ..'..1 Fig. 6 is an enlarged detail view of the pulley for guiding the valve operating" cha1ns.-

Referring to the drawings the numeral 1 designates a car of the ordinary construction havin 'the usual truck 2 pivotally mounted t ereon which truck carries the usual wheels 3 and comprises the upperbar videcl withthe downwardly extendinggbars- 6 which join the bar 5 at its ends iniwhich the 'o'urnal bearings 7 of the axle '8Qon whic the wheels 3 are mounted is secured.

chain- 28 whic Pivotally connected as at 9 to the bar 4 at a point substantially centrally thereof is a rocking lever 10 having pivotedto one end a vertically slidable rod 11 which is slidable through suitable brackets 12 and 13 mounted on the bars 4 and 5 respectively. The lower end of the rod or plunger 11 is provided with an inturned portion 14. which is of considerable length so that it extends beyond the sides of a railway rail as clearly shown in Fig. 2.

Pivotally connected to the end of the rockihg lever 10 opposite that which is connected to the plungenll is a link 15 the upper end 0 f which is pivotally connected as at 16- to the outwardly extendin arm 17 of the bell crank lever designate generally by the numeral 18 which is pivoted as at 19 to' a suitable bracket supported on the upper side of the bar 4. The upstanding arm 20 of the bell crank 18 is pivotally connected as at- 21 to a rod 22 wh-iehbas its opposite end pivoted as at 23 to the valve handle 24 wh1ch is connected to ava'lve 25 arranged in the train pipe 26. This valve forms an exhaust when in open positions so that the pressure in the train ipe will be reduced therebf setting the rake. The valve is normal y in closed os'ition so that the rods 11 are downward y to their farthest limit and when the truck leaves the rail it will beseen that the arm 14 on the crank to exert all on the rod 22 t us turnin the valve andle 24 so as to open the va ve 25.

In the modified form of. the device, the

truck has pivotally connected thereto a rockingi'lever ,27 provided with a suitable plunger 11*whichis constructed in accordaiice "with the plunger 11. Connected to the end 'of the [rocking lever 27 opposite that to-which the plunger 11} is connected is a passes upwardly and over a suitable roller 01''. pulley 29 and thence under a. suitable guide roller 30 mounted between suitable brack'eitsBl which are attached to the upper side-of the truck and this chain is. connect'edat'32 to avalve handle 33.whichcontrols the'ope'n-ing and closingof a valve pipe35'. It will '31 {arranged in the train thus-be seenthat should the truck leave the 'tra c k, -'pull'v'vi ll be; exerted on one or ;the

other of the chains thereby causing the valve to move to open position thus ventin the train line and settin the brakes.

hile in the foregoing 518KB has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the invention as claimed.

\Vhat is claimed is The combination witha railway car having a train pipe and a truck, of a valve located in the train pipe directlyabove the truck, a handle on said valve for operating the same, said handle extending outwardly from each side of the valve for equal distances, a horizontal rocking lever pivotally secured to the outer side of each end of the truck, a vertical plunger rod slidably mounted on the outer ends of the truck and having the upper ends thereof pivotally secured to the adjacent end of each rocking lever, the'lower end of each vertical sliding plunger rod being bent inwardly at right an%les toward each other, so as to overlie the rai s of a track, and means operatively connecting the opposite end of each horizontal rocking lever with the free ends of the valve handle, as and for the pur ose specified.

In testimon whereof I a x my signature in presence 0 two witnesses.

DAVID D. OOONNELL.

Witnesses I N. J. WYGKOFF, M. C. FIFE. 

